On Mon, 21 Feb 2011 17:46 -0500, "Dr Skip" wrote: > I'm repairing a friend's super-duper mega blender (brand name shall >=20 > Anyway, I can't get enough info to tell which type I should replace > with. It seems to not be quite linear, but it jumps around so much and > never does the same thing twice, so who knows. The question is, are > there any designs that use or used an audio taper pot for triac (or > maybe scr) speed control?=20 Lamp dimmers have pots that are their own special taper which is not linear or audio. Yours might also be a weird taper. You might be able to take a linear taper pot and modify its taper with the addition of a resistor from wiper to one end. That might get you close to what you need. Cheerful regards, Bob --=20 http://www.fastmail.fm - Access all of your messages and folders wherever you are --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .